Research on Laser Micromachining at Medical Stents Manufacturing
It is known that cardio-vascular deceases are the number one killer in the world. As an alternative to common treatment methods the installation of special device-stent into the damaged blood vessel could be used to minimize fatal outcomes. Existing technologies of stent manufacturing provide quite good results but are very expensive at the moment. The given paper deals with the design of stents for cardio-vascular surgery and their manufacturing with help of Q-switched Nd-YAG laser which is considered to be much cheaper and more efficient. The methods of nonlinear programming together with methods of experiments planning were used to find the optimal processing conditions and create adequate numerical models of the process. Several processing schemes based on direct laser cutting and step-by-step laser milling had been considered in the research. Some processing dependencies had been established as well as the possibility to create the special micro-relief on the machined surface with help of laser milling. It was demonstrated that due to the assist gas stream action the micro deformation of the stents workpiece occurs thus influencing the final machining quality.
Laser cutting Modelling Laser micro machining
V. Kovalenko J. Meijer J.Yao M. Anyakin R. Zhuk P. Kondrashev O. Stepura
Laser Technology Research Institute, National Technical University of Ukraine KPI, Kyiv, Ukraine Applied Laser technology, University of Twente, Netherlands Research Center of Laser Processing Technology and Engineering, Zhejiang University of Technology, H Laser Technology Research Institute, National Technical University of Ukraine KPI, Kyiv, Ukraine
国际会议
The 16th International Symposium on Electromachining(第16届国际电加工会议)
上海
英文
443-448
2010-04-19（万方平台首次上网日期，不代表论文的发表时间）